逆转光暗周期对热应激 brojlers 的生长性能和肠道健康的影响
Huiyuan Rui1, Xiangyang Xu1, Fei Song1
1School of Animal Medicine, Northeast Agricultural University, Harbin, 150030, China.
Journal of thermal biology
|August 21, 2025
概括
反向光暗周期 (RLD) 有效地减轻 brojlers 的热应激. 这种方法改善肉生长,减少压力,改善肠道功能和微生物平衡.
科学领域:
- 动物科学
- 生理学
- 微生物学
背景情况:
- 热应激会对肉生长和肠道健康产生负面影响.
- 通过反转光暗周期 (RLD) 调节昼夜节律是缓解HS影响的潜在策略.
研究的目的:
- 研究RLD在改善HS引起的肠损伤中的有效性.
- 评估RLD对肉生长,压力标志物,肠道完整性和肠道微生物群的影响.
主要方法:
- 他对组织形态进行着染色.
- 基因和蛋白质表达分析的分子生物学技术.
- 用于肠道微生物群的16S rRNA测序.
主要成果:
- RLD显著改善了肉的体重,并减轻了氧化应激.
- RLD促进了黑激素的释放,并降低了皮质醇和热冲击蛋白70的表达.
- RLD增强了紧结蛋白的表达,调节了肠道微生物群的组成,改善了消化酶的活性.
结论:
- RLD有效地保护肉肠道功能免受热应激.
- 通过减少压力反应和改善HS条件下的 brojlers的肠道健康,RLD提高了生长性能.
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